Head mounted display device



FIG. 1 is a perspective view of a head mounted display device showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a front view thereof, but with a portion of the article shown as transparent;

FIG. 9 is a top plan view thereof, showing the article in a position of use with an alternate position shown in broken lines;

FIG. 10 is a top plan view thereof showing the article in a position of use with an alternate position shown in broken lines; and,

FIG. 11 is a left side view showing the article in a position of use with the environment shown in broken lines.

The broken lines show unclaimed subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a head mounted display device, as shown and described. 